Integrated forming method for processing graphene film with high specific surface area through ultraviolet ultrafast laser
A technology of graphene film and high specific surface area, applied in the direction of graphene, chemical instruments and methods, nano-carbon, etc., can solve the problems of complex process, poor controllability, high cost, etc., and achieve simple process, improved flexibility, and strong controllability sexual effect
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Embodiment 1
[0074] An integrated forming method for processing a graphene film with a high specific surface area by an ultraviolet ultrafast laser of the present embodiment includes the following steps:
[0075] S1: Set the amount of carbon precursor material raw material and activator to: 1 g of alkaline lignin, 1 g of polyvinyl alcohol, and 2.5 g of potassium hydroxide;
[0076] S2: 1 g of polyvinyl alcohol and 8 mL of deionized water were heated in a water bath at 80°C for 1 h under magnetic stirring to obtain a transparent gel solution, 2.5 g of potassium hydroxide and 1 g of alkaline lignin were dissolved in 4 mL of deionized water and the The mixture was added to the above gel solution, heated in a 60°C water bath and magnetically stirred for 4 hours to obtain a composite material (gel-like) with uniform loading of the activator;
[0077] Coat the obtained gel-like composite material on a flexible substrate with a rough surface with a coating knife with a coating thickness of 100 μm...
Embodiment 2
[0082] An integrated forming method for processing a graphene film with a high specific surface area by an ultraviolet ultrafast laser of the present embodiment includes the following steps:
[0083] S1: Set the amount of carbon precursor material raw material and activator to: 1 g of alkaline lignin, 1 g of polyvinyl alcohol, and 2.5 g of potassium hydroxide;
[0084] S2: 1 g of polyvinyl alcohol and 8 mL of deionized water were heated in a water bath at 80°C for 1 h under magnetic stirring to obtain a transparent gel solution, 2.5 g of potassium hydroxide and 1 g of alkaline lignin were dissolved in 4 mL of deionized water and the The mixture was added to the above gel solution, heated in a 60°C water bath and magnetically stirred for 4 hours to obtain a composite material (gel-like) with uniform loading of the activator;
[0085] Coat the obtained gel-like composite material on a flexible substrate with a rough surface with a coating knife with a coating thickness of 100 μm; ...
Embodiment 3
[0090] An integrated forming method for processing a graphene film with a high specific surface area by an ultraviolet ultrafast laser of the present embodiment includes the following steps:
[0091] S1: Set the amount of carbon precursor material raw material and activator to: 1 g of alkaline lignin, 1 g of polyvinyl alcohol, and 2.5 g of potassium hydroxide;
[0092] S2: 1 g of polyvinyl alcohol and 8 mL of deionized water were heated in a water bath at 80°C for 1 h under magnetic stirring to obtain a transparent gel solution, 2.5 g of potassium hydroxide and 1 g of alkaline lignin were dissolved in 4 mL of deionized water and the The mixture was added to the above gel solution, heated in a 60°C water bath and magnetically stirred for 4 hours to obtain a composite material (gel-like) with uniform loading of the activator;
[0093] Coat the obtained gel-like composite material on a flexible substrate with a rough surface with a coating knife with a coating thickness of 100 μm...
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Abstract
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